CN103574969B - Air-conditioning system - Google Patents
Air-conditioning system Download PDFInfo
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- CN103574969B CN103574969B CN201310537997.XA CN201310537997A CN103574969B CN 103574969 B CN103574969 B CN 103574969B CN 201310537997 A CN201310537997 A CN 201310537997A CN 103574969 B CN103574969 B CN 103574969B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of air-conditioning system, it comprises four-way valve, compressor, outdoor heat exchanger, indoor heat exchanger and throttle mechanism, air-conditioning system comprises defrosting path, and defrosting path comprises electronic installation, micro-channel heat exchanger, the first magnetic valve, the 2nd magnetic valve. When air-conditioning system enters defrosting mode, compressor is not shut down, and four-way valve does not commutate, and indoor fan is blowing hot-air still. First magnetic valve is opened, 2nd closed electromagnetic valve, refrigerant through throttle mechanism flows into micro-channel heat exchanger, absorption chamber exoelectron device sends out heat thermogenetic, entering outdoor heat exchanger to defrost, release heat, what enter compressor returns gas interface, complete a circulation, under the pattern of system heat, complete defrosting. Air-conditioning system provided by the present invention does not need compressor to stop and four-way valve commutation when defrosting, working reliability height, and the impact of network operation is low, and the comfortable property of conditioner air-supply is good, and defrosting time is short and energy consumption is low.
Description
Technical field
The invention belongs to air-conditioning technical field, particularly relate to and a kind of utilize automatically controlled heat radiation defrosting and energy-conservation air-conditioning system.
Background technology
Along with people are to the pursuit of comfortable life, the application of heat pump type air conditioner is popularized already. Heat pump type air conditioner is when low-temperature heating, and the easy frosting of outdoor heat exchanger fin surface, fin frosting have impact on the coefficient of heat transfer of air-conditioning system, reduces heating capacity, it is necessary to carrying out defrosts ensures the continuous and steady operation of air-conditioning system.
The Defrost mode that current air-conditioning system adopts is adopt exhaust defrosting mode mostly, i.e. four-way valve commutation, compressor air-discharging leads to and carrys out defrosting into outdoor heat exchanger, its basic defrost process generally: enter defrosting mode and stop the commutation of compressor four-way valve and drive compressor air-discharging defrosting frost melts compressor and stop four-way valve commutation and open compressor defrosting and terminate.
The air-conditioning system that prior art provides also exists following shortcoming when defrosting:
(1) compressor start is frequent, and a defrosting cycle just needs startup twice, and energy consumption height during compressor start is bigger to the impact of electrical network, and start and stop are also unfavorable for the reliability of compressor frequently.
(2) comfortable property is poor, and during defrosting, thermal cycling processed stops, and fluctuations in indoor temperature is big, easily has except during frost " cold wind " to blow out, reduces the comfortable property of conditioner.
(3) low-temperature heating ability decline, defrosting time is more long, and the impact of low-temperature heating ability is more big. Along with the enforcement of country's new standard APF efficiency grade, low-temperature heating ability have impact on the efficiency grade of conditioner significantly.
(4) energy consumption height, is only used to defrosting and defrosts. When making heat, because frosting takes four-way valve to commutate, force defrosting, not energy-conservation.
Summary of the invention
It is an object of the invention to provide and a kind of utilize outdoor dynamo-electric control heat radiation with the air-conditioning system of the frost on decontamination chamber external heat exchanger, it is intended to solve in prior art the air-conditioning system existed need when defrosting compressor stop with four-way valve commutation and bring the reliability reducing air-conditioning system, normal operation affect electrical network, problem that the comfortable property, defrosting time length and the energy consumption that affect conditioner and blow are high.
The present invention realizes like this, a kind of air-conditioning system, it comprises four-way valve, with the compressor that the first interface of described four-way valve is connected, with the outdoor heat exchanger of the 2nd interface tandem of described four-way valve, throttle mechanism on the indoor heat exchanger being connected with the 4th interface of described four-way valve and the first pipeline being connected between described outdoor heat exchanger and described indoor heat exchanger, described first interface of described four-way valve is connected with the refrigerant exit of described compressor, 3rd interface of described four-way valve is connected with the gas interface that returns of described compressor, described air-conditioning system also comprises the defrosting path on the 2nd pipeline being series between described outdoor heat exchanger and described throttle mechanism, described defrosting path comprises electronic installation, it is connected on described electronic installation to absorb the micro-channel heat exchanger of the heat that described electronic installation produces, first magnetic valve, 2nd magnetic valve, check valve, 3rd pipeline and the 4th pipeline, described micro-channel heat exchanger has the first Link Port and the 2nd Link Port, one end of described 3rd pipeline is connected to described first Link Port, and the other end is connected on described 2nd pipeline, one end of described 4th pipeline is connected to described 2nd Link Port, and the other end is connected on described 2nd pipeline, and described first magnetic valve is serially connected with on described 3rd pipeline, described check valve is serially connected with on described 4th pipeline, and wherein, the import of described check valve is connected on described 2nd Link Port, and the outlet of described check valve is connected on described 2nd pipeline, described 2nd magnetic valve is serially connected with on described 2nd pipeline and between described 3rd pipeline and the junction of described 2nd pipeline and the junction of described 4th pipeline and described 2nd pipeline.
Further, being connected with the 5th pipeline between the 2nd interface of described four-way valve and described outdoor heat exchanger, described air-conditioning system also comprises the waste-heat recovery device being serially connected with on described 5th pipeline.
Further, described waste-heat recovery device comprises the 3rd magnetic valve, the 2nd check valve, the 3rd check valve, regenerator, the 7th pipeline and the 8th pipeline, and described regenerator is serially connected with on the 6th pipeline between described indoor heat exchanger and described throttle mechanism; One end of described 7th pipeline is connected on described 5th pipeline, and the other end is connected on described regenerator; One end of described 8th pipeline is connected on described 5th pipeline, and the other end is connected on described regenerator; Described 2nd check valve is serially connected with on described 7th pipeline; Described 3rd check valve is serially connected with on described 8th pipeline; Described 3rd magnetic valve be serially connected with on described 5th pipeline and between described 8th pipeline and the junction of described 5th pipeline and the junction of described 7th pipeline and described 5th pipeline; The import of described 2nd check valve is connected on described 5th pipeline, and the outlet of described 2nd check valve is connected on described regenerator; The import of described 3rd check valve is connected on described regenerator, and the outlet of described 3rd check valve is connected on described 5th pipeline.
Further, described regenerator is laminated metal screen type, parallel metal wire form, laminated metal bead, parallel metal chip, random wire form or wire cloth and metallic bead mixing filling type.
Further, described electronic installation is outdoor electric-controlled box, and described outdoor electric-controlled box comprises box body, the circuit card that is installed in described box body and the tinsel being affixed on the back side of described circuit card, and described micro-channel heat exchanger fits on described tinsel.
Further, described tinsel is copper sheet.
Further, insulating paste is scribbled between the back side of described tinsel and described circuit card.
Further, described throttle mechanism is electric expansion valve or kapillary.
Further, between the first interface of described four-way valve and the refrigerant exit of described compressor, it is connected with the 9th pipeline, described 9th pipeline is connected with oil separator.
Further, the 3rd interface and the returning of described compressor of described four-way valve are connected with the tenth pipeline between gas interface, and described tenth pipeline is connected with gas-liquid separator.
In order to make air-conditioning system not need compressor to stop and four-way valve commutation when defrosting, working reliability height, the impact of network operation is low, the comfortable property of conditioner air-supply is good, defrosting time is short and energy consumption is low, air-conditioning system provided by the present invention pipeline between outdoor heat exchanger with throttle mechanism is connected in series defrosting path, defrosting path comprises electronic installation, the micro-channel heat exchanger being connected on electronic installation, first magnetic valve, 2nd magnetic valve, check valve, when air-conditioning system enters defrosting mode, compressor is not shut down, four-way valve does not commutate, indoor fan is blowing hot-air still. first magnetic valve is opened, 2nd closed electromagnetic valve, refrigerant through throttle mechanism flows into micro-channel heat exchanger, absorption chamber exoelectron device sends out heat thermogenetic, entering outdoor heat exchanger to defrost, release heat, what enter compressor returns gas interface, complete a circulation, under the pattern of system heat, complete defrosting. air-conditioning system provided by the present invention stops and four-way valve commutation without compressor, it is to increase the reliability of air-conditioning system, the present invention can realize defrosting while system heat, it is to increase comfortable property, invention increases low-temperature heating ability, it is possible to improve the efficiency grade of air-conditioning, the present invention is by taking away the heat radiation of outdoor electric-controlled box, it is to increase the reliability of electronic devices and components, present invention utilizes " used heat ", energy saving height.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the air-conditioning system that first embodiment of the invention provides.
Schematic diagram when Fig. 2 illustrates that the air-conditioning system of Fig. 1 is in the operational mode of refrigeration.
Fig. 3 illustrate the air-conditioning system of Fig. 1 be in system heat operational mode time schematic diagram.
Schematic diagram when Fig. 4 illustrates that the air-conditioning system of Fig. 1 is in the operational mode of heating and defrosting.
Fig. 5 is the schematic diagram of the air-conditioning system that second embodiment of the invention provides.
Schematic diagram when Fig. 6 illustrates that the air-conditioning system of Fig. 5 is in the operational mode of heating and defrosting.
Schematic diagram when Fig. 7 illustrates that the air-conditioning system of Fig. 5 is in the operational mode of refrigeration.
Fig. 8 is the three-dimensional exploded view of outdoor electric-controlled box and the micro-channel heat exchanger applied in the air-conditioning system of embodiment of the present invention offer.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and useful effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated. It is to be understood that specific embodiment described herein is only in order to explain the present invention, it is not intended to limit the present invention.
Refer to Fig. 1, a kind of air-conditioning system that first embodiment of the invention provides, it comprises four-way valve 10, with the compressor 20 that the first interface 11 of described four-way valve 10 is connected, with the outdoor heat exchanger 30 that the 2nd interface 12 of described four-way valve 10 is connected, throttle mechanism 50 on the indoor heat exchanger 40 being connected with the 4th interface 14 of described four-way valve 10 and the first pipeline 81 being connected between described outdoor heat exchanger 30 and described indoor heat exchanger 40, described first interface 11 of described four-way valve 10 is connected with the refrigerant exit 21 of described compressor 20, 3rd interface 13 of described four-way valve 10 is connected with the gas interface 22 that returns of described compressor 20.
Described air-conditioning system also comprises the defrosting path 60 on the 2nd pipeline 82 being series between described outdoor heat exchanger 30 and described throttle mechanism 50, micro-channel heat exchanger 62, first magnetic valve 63, the 2nd magnetic valve 64, check valve 65, the 3rd pipeline 66 and the 4th pipeline 67 that described defrosting path 60 comprises electronic installation 61, is connected on described electronic installation 61 to absorb the heat that described electronic installation 61 produces. Defrosting path 60 makes to flow through micro-channel heat exchanger 62 from throttle mechanism 50 refrigerant out and absorbs the heat that electronic installation 61 produces, refrigerant is made to turn into normal temperature and pressure from low-temp low-pressure, it is delivered to outdoor heat exchanger 30 place's heat release again, thus the frost on decontamination chamber external heat exchanger 30.
Described micro-channel heat exchanger 62 has the first Link Port 621 and the 2nd Link Port 622; One end of described 3rd pipeline 66 is connected to described first Link Port 621, and the other end is connected on described 2nd pipeline 82; One end of described 4th pipeline 67 is connected to described 2nd Link Port 622, and the other end is connected on described 2nd pipeline 82.
Described check valve 65 is serially connected with on described 4th pipeline 67, and wherein, the import 651 of described check valve 65 is connected on described 2nd Link Port 622, and the outlet 652 of described check valve 65 is connected on described 2nd pipeline 82. 65, described check valve allows refrigerant along inlet flow, and cannot from outlet backflow, it is ensured that the normal operation of defrosting path 60.
Described first magnetic valve 63 is serially connected with on described 3rd pipeline 66. Described 2nd magnetic valve 64 is serially connected with on described 2nd pipeline 82 and between described 3rd pipeline 66 and the junction of described 2nd pipeline 82 and the junction of described 4th pipeline 67 and described 2nd pipeline 82. In use, the first magnetic valve 63 and the 2nd magnetic valve 64 are " with non-" relation, and namely a magnetic valve is opened and another closed electromagnetic valve so that air-conditioning system can select whether enter defrosting mode.
Being connected in series defrosting path 60 on air-conditioning system provided by the present invention pipeline between outdoor heat exchanger 30 with throttle mechanism 50, defrosting path 60 comprises electronic installation 61, micro-channel heat exchanger 62, first magnetic valve 63 that is connected on electronic installation 61, the 2nd magnetic valve 64, check valve 65. When air-conditioning system enters defrosting mode, compressor 20 is not shut down, and four-way valve 10 does not commutate, and indoor fan is blowing hot-air still. First magnetic valve 63 is opened, 2nd magnetic valve 64 cuts out, refrigerant through throttle mechanism 50 flows into micro-channel heat exchanger 62, absorption chamber exoelectron device 61 sends out heat thermogenetic, entering outdoor heat exchanger 30 to defrost, release heat, what enter compressor 20 returns gas interface 22, complete a circulation, under the pattern of system heat, complete defrosting. Air-conditioning system provided by the present invention stops commutating with four-way valve 10 without compressor 20, it is to increase the reliability of air-conditioning system; The present invention can realize defrosting while system heat, it is to increase comfortable property; Invention increases low-temperature heating ability, it is possible to improve the efficiency grade of air-conditioning; The present invention is by taking away the heat radiation of outdoor electric-controlled box, it is to increase the reliability of electronic devices and components; Present invention utilizes " used heat ", energy saving height.
Refer to Fig. 8, described electronic installation 61 is outdoor electric-controlled box, the tinsel 613 at described outdoor electric-controlled box comprises box body 611, be installed in described box body 611 circuit card 612 and the back side that is affixed on described circuit card 612, described micro-channel heat exchanger 62 fits on described tinsel 613. Box body 611 plays a supportive role. Box body 611 is offered groove 614, for arranging the metal tube on stream road. Micro-channel heat exchanger 62 applies on box body 611, has refrigerant to pass through in micro-channel heat exchanger 62. Understandably, described electronic installation 61 is resistance heater.
Defrosting path 60 makes to flow through micro-channel heat exchanger 62 from throttle mechanism 50 refrigerant out and absorbs the heat that electronic installation 61 produces, refrigerant is made to turn into normal temperature and pressure from low-temp low-pressure, it is delivered to outdoor heat exchanger 30 place's heat release again, thus the frost on decontamination chamber external heat exchanger 30. The present invention is by taking away the heat radiation of outdoor electric-controlled box, it is to increase the reliability of electronic devices and components; Present invention utilizes " used heat ", energy saving height.
Further, described tinsel 613 is copper sheet. Understandably, described tinsel 613 is aluminium sheet. Tinsel 613 conductive force.
Further, insulating paste is scribbled between described tinsel 613 and the back side of described circuit card 612 so that insulation and together with being combined between described tinsel 613 with described circuit card 612, it is ensured that safety in utilization by insulating paste.
Further, described throttle mechanism 50 is electric expansion valve or kapillary, and its effect is reducing pressure by regulating flow.
Further, the 9th pipeline 89 it is connected with between first interface 11 of described four-way valve 10 and the refrigerant exit 21 of described compressor 20, described 9th pipeline 89 is connected with oil separator (not shown), its effect is that the lubricating oil in the high pressure steam discharged by compressor 20 is separated, and runs safely and efficiently with assurance device.
Further, the 3rd interface 13 and the returning of described compressor 20 of described four-way valve 10 are connected with the tenth pipeline 80 between gas interface 22, and described tenth pipeline 80 is connected with gas-liquid separator (not shown), and its effect is gas-liquid separation.
The air-conditioning system of the present invention improves on general air-conditioning system basis, increases magnetic valve and defrosting path 60, in normal cooling and warming round-robin basis, starts defrosting path 60 by the unlatching of valve.
Refer to Fig. 2, the direction of the flowing of arrow instruction refrigerant in figure. Air-conditioning system is in the operational mode of refrigeration, and the first magnetic valve 63 cuts out, and the 2nd magnetic valve 64 is opened, compressor 20 starts, and the gas coolant discharging High Temperature High Pressure, through four-way valve 10, enters outdoor heat exchanger 30, releasing heat, the liquid coolant being condensed into middle temperature high pressure enters throttle mechanism 50; The two-phase refrigerant becoming low-temp low-pressure through throttling action enters indoor heat exchanger 40, absorbs heat, flashes to the gas coolant of low-temp low-pressure; Through four-way valve 10, return to compressor 20, complete refrigeration cycle. The effect of check valve 65, makes do not have refrigerant to flow into defrosting path 60 during refrigeration.
Refer to Fig. 3, the direction of the flowing of arrow instruction refrigerant in figure. Air-conditioning system is in the operational mode of system heat, and the first magnetic valve 63 cuts out, and the 2nd magnetic valve 64 is opened, and compressor 20 starts, and the gas coolant discharging High Temperature High Pressure, through four-way valve 10, enters indoor heat exchanger 40, releases heat; The liquid coolant being condensed into middle temperature high pressure enters throttle mechanism 50; The two-phase refrigerant becoming low-temp low-pressure through throttling action enters outdoor heat exchanger 30, absorbs heat, flashes to the gas coolant of low-temp low-pressure; Through four-way valve 10, return to compressor 20, complete thermal cycling processed.
Refer to Fig. 4, the direction of the flowing of arrow instruction refrigerant in figure. Air-conditioning system is in the operational mode of heating and defrosting, and the first magnetic valve 63 is opened, and the 2nd magnetic valve 64 cuts out, and compressor 20 starts, and the gas coolant discharging High Temperature High Pressure, through four-way valve 10, enters indoor heat exchanger 40, releases heat; The liquid coolant being condensed into middle temperature high pressure enters throttle mechanism 50; The two-phase refrigerant of low-temp low-pressure is become through throttling action. 2nd magnetic valve 64 is opened, the two-phase refrigerant of low-temp low-pressure enters micro-channel heat exchanger 62, and micro-channel heat exchanger 62 is positioned on outdoor electric-controlled box, due to the heating of electronic devices and components, the temperature of micro-channel heat exchanger 62 is at about 45 DEG C, the refrigerant of low-temp low-pressure absorbs the gaseous coolant that heat becomes normal temperature and pressure and enters outdoor heat exchanger 30 and release heat, defrost, indoor heat exchanger 40 still blows " hot blast " simultaneously, refrigerant after having defrosted is through four-way valve 10, what return to compressor 20 returns gas interface 22, completes circulation.
Refer to Fig. 5, the air-conditioning system that second embodiment of the invention provides, roughly the same with the vertical air-conditioner indoor unit that the first embodiment provides, and the first embodiment the difference is that: being connected with the 5th pipeline 85 between the 2nd interface 12 of described four-way valve 10 and described outdoor heat exchanger 30, described air-conditioning system also comprises the waste-heat recovery device 70 being serially connected with on described 5th pipeline 85.
The air-conditioning system of the present invention increases a waste-heat recovery device 70 in coolant loop, not only reaches the object of waste heat recovery, and can not too much increase the structural complexity of air-conditioning system so that air-conditioning system is simple and reasonable, operation is flexible.
Further, described waste-heat recovery device 70 comprises the 3rd magnetic valve 71, the 2nd check valve 72, the 3rd check valve 73, regenerator 74, the 7th pipeline 75 and the 8th pipeline 76, and described regenerator 74 is serially connected with on the 6th pipeline 86 between described indoor heat exchanger 40 and described throttle mechanism 50; One end of described 7th pipeline 75 is connected on described 5th pipeline 85, and the other end is connected on described regenerator 74; One end of described 8th pipeline 76 is connected on described 5th pipeline 85, and the other end is connected on described regenerator 74; Described 2nd check valve 72 is serially connected with on described 7th pipeline 75; Described 3rd check valve 73 is serially connected with on described 8th pipeline 76; Described 3rd magnetic valve 71 be serially connected with on described 5th pipeline 85 and between described 8th pipeline 76 and the junction of described 5th pipeline 85 and the junction of described 7th pipeline 75 and described 5th pipeline 85; The import 721 of described 2nd check valve 72 is connected on described 5th pipeline 85, and the outlet 722 of described 2nd check valve 72 is connected on described regenerator 74; The import 731 of described 3rd check valve 73 is connected on described regenerator 74, and the outlet 732 of described 3rd check valve 73 is connected on described 5th pipeline 85.
Further, described regenerator 74 is laminated metal screen type, parallel metal wire form, laminated metal bead, parallel metal chip, random wire form or wire cloth and metallic bead mixing filling type.
Refer to Fig. 6, the direction of the flowing of arrow instruction refrigerant in figure. Air-conditioning system is in the operational mode of heating and defrosting, first magnetic valve 63 is opened, 2nd magnetic valve 64, the 3rd magnetic valve 71 are closed, complete the refrigerant after defrosting through the 2nd check valve 72, enter regenerator 74, absorb heat, through the 3rd check valve 73, entering four-way valve 10, what return to compressor 20 returns gas interface 22, completes circulation.
Liquid coolant before throttling and compressor 20 suck before steam refrigerant carry out heat exchange at regenerator 74 place, make that liquid is excessively cold, steam superheating, reach the object of backheat. Described air-conditioning system not only can increase unit system heat, and the heat transfer temperature difference that can reduce between steam and ambient air, reduces even eliminate in aspirating air pipe harmful overheated, the over-all properties of lifting air-conditioning system. Regenerator 74 application within air-conditioning systems, makes whole refrigerant circulation have higher efficiency performance and more excellent system matches.
Refer to Fig. 7, the direction of the flowing of arrow instruction refrigerant in figure. Air-conditioning system is in the operational mode of refrigeration, and the first magnetic valve 63 cuts out, and the 2nd magnetic valve 64, the 3rd magnetic valve 71 are opened, refrigerant without waste-heat recovery device 70 and defrosting path 60, as air-conditioning air-conditioning system complete circulation.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. done within the spirit and principles in the present invention, all should be included within protection scope of the present invention.
Claims (8)
1. an air-conditioning system, it comprises four-way valve, with the compressor that the first interface of described four-way valve is connected, with the outdoor heat exchanger of the 2nd interface tandem of described four-way valve, throttle mechanism on the indoor heat exchanger being connected with the 4th interface of described four-way valve and the first pipeline being connected between described outdoor heat exchanger and described indoor heat exchanger, described first interface of described four-way valve is connected with the refrigerant exit of described compressor, 3rd interface of described four-way valve is connected with the gas interface that returns of described compressor, it is characterized in that: described air-conditioning system also comprises the defrosting path on the 2nd pipeline being series between described outdoor heat exchanger and described throttle mechanism, described defrosting path comprises electronic installation, it is connected on described electronic installation to absorb the micro-channel heat exchanger of the heat that described electronic installation produces, first magnetic valve, 2nd magnetic valve, check valve, 3rd pipeline and the 4th pipeline, described micro-channel heat exchanger has the first Link Port and the 2nd Link Port, one end of described 3rd pipeline is connected to described first Link Port, and the other end is connected on described 2nd pipeline, one end of described 4th pipeline is connected to described 2nd Link Port, and the other end is connected on described 2nd pipeline, and described first magnetic valve is serially connected with on described 3rd pipeline, described check valve is serially connected with on described 4th pipeline, and wherein, the import of described check valve is connected on described 2nd Link Port, and the outlet of described check valve is connected on described 2nd pipeline, described 2nd magnetic valve is serially connected with on described 2nd pipeline and between described 3rd pipeline and the junction of described 2nd pipeline and the junction of described 4th pipeline and described 2nd pipeline, the 5th pipeline it is connected with between 2nd interface of described four-way valve and described outdoor heat exchanger, described air-conditioning system also comprises the waste-heat recovery device being serially connected with on described 5th pipeline, described waste-heat recovery device comprises the 3rd magnetic valve, 2nd check valve, 3rd check valve, regenerator, 7th pipeline and the 8th pipeline, described regenerator is serially connected with on the 6th pipeline between described indoor heat exchanger and described throttle mechanism, one end of described 7th pipeline is connected on described 5th pipeline, and the other end is connected on described regenerator, one end of described 8th pipeline is connected on described 5th pipeline, and the other end is connected on described regenerator, described 2nd check valve is serially connected with on described 7th pipeline, described 3rd check valve is serially connected with on described 8th pipeline, described 3rd magnetic valve be serially connected with on described 5th pipeline and between described 8th pipeline and the junction of described 5th pipeline and the junction of described 7th pipeline and described 5th pipeline, the import of described 2nd check valve is connected on described 5th pipeline, and the outlet of described 2nd check valve is connected on described regenerator, the import of described 3rd check valve is connected on described regenerator, and the outlet of described 3rd check valve is connected on described 5th pipeline.
2. air-conditioning system as claimed in claim 1, it is characterised in that: described regenerator is laminated metal screen type, parallel metal wire form, laminated metal bead, parallel metal chip, random wire form or wire cloth and metallic bead mixing filling type.
3. air-conditioning system as claimed in claim 1, it is characterized in that: described electronic installation is outdoor electric-controlled box, described outdoor electric-controlled box comprises box body, be installed in described box body circuit card and the tinsel being affixed on the back side of described circuit card, described micro-channel heat exchanger fits on described tinsel.
4. air-conditioning system as claimed in claim 3, it is characterised in that: described tinsel is copper sheet.
5. air-conditioning system as claimed in claim 3, it is characterised in that: scribble insulating paste between the back side of described tinsel and described circuit card.
6. air-conditioning system as described in claim 1 to 5 any one, it is characterised in that: described throttle mechanism is electric expansion valve or kapillary.
7. air-conditioning system as described in claim 1 to 5 any one, it is characterised in that: it is connected with the 9th pipeline between the first interface of described four-way valve and the refrigerant exit of described compressor, described 9th pipeline is connected with oil separator.
8. air-conditioning system as described in claim 1 to 5 any one, it is characterised in that: the 3rd interface and the returning of described compressor of described four-way valve are connected with the tenth pipeline between gas interface, and described tenth pipeline is connected with gas-liquid separator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310537997.XA CN103574969B (en) | 2013-11-04 | 2013-11-04 | Air-conditioning system |
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| CN201310537997.XA CN103574969B (en) | 2013-11-04 | 2013-11-04 | Air-conditioning system |
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| CN103574969A CN103574969A (en) | 2014-02-12 |
| CN103574969B true CN103574969B (en) | 2016-06-01 |
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| CN114909715B (en) * | 2021-02-08 | 2024-03-22 | 广东美的暖通设备有限公司 | Heat exchanger, manufacturing method thereof, electric control box and air conditioning system |
| CN114909726A (en) * | 2021-02-08 | 2022-08-16 | 广东美的暖通设备有限公司 | Heat exchanger, electric control box and air conditioning system |
| CN114909831B (en) * | 2021-02-08 | 2024-06-14 | 广东美的暖通设备有限公司 | Heat exchanger, electric control box and air conditioning system |
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